'Analog,' Orange Mountain Music's new release by Philip Glass contains three seminal works in Glass's musical history. In the late 1970's, two film producers, Francois de Menil and Barbara Rose, asked Philip Glass to write music for a film they were producing. The film was 'Mark di Suvero, Sculptor' and it was Glass's first film score, predating even 'Koyaanisqatsi.' The score took its titles from the names of di Suvero sculptures shown in the film, including 'Etoile Polaire' (North Star) and others. The disc also includes 'Dressed like an Egg' - a never before released early Glass score which was written as incidental music to a Mabou Mines Theater Company production in 1977. The disc is rounded out with another never-before-heard recording of Glass' 'Mad Rush' for organ. All the performances on 'Analog' feature original performances by Philip Glass on electric organ.